Warm outdoor clothing. Good boots, gloves and a warm down jacket or similar to put on when we stop for camping and cooking. Be careful to wear hat that can be inside the helmet since . Tripod and wide angel lens is a must in ice cave photography, but don't bother too much with flash etc. Bring good back pack, bigger the better, since you have to carry rather bulky 4 season sleeping bag that we provide, and the ingredients for your dinner and breakfast, and of course you might want to bring your photo gear and plenty of batteries :-). Guide will provide cooking gear etc.